We have the exact same issue. If this was solved (hopefully) could you please provide a brief description on the fix?
Thanks!

As of 1.59.0 this is possible but it is slightly unintuitive how to do it. It’s entirely driven by the form being used. Here's how to do it:

create a new user admin form: https://fusionauth.io/docs/lifecycle/manage-users/admin-forms make sure you omit the 'password' field from the form assign the form to your tenant create a new user

You can also create a user directly via the API with no password.